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Finding the Fourth Proportional to 223,431.60, 335,406.60 and 134,785.20

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Solution

The fourth proportional to 223,431.60, 335,406.60 and 134,785.20 is: 202,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,431.60 : 335,406.60 = 134,785.20 : x
  2. Step 2: Convert to fraction form
    223,431.60/335,406.60 = 134,785.20/x
  3. Step 3: Cross multiply
    223,431.60x = 335,406.60 × 134,785.20
  4. Step 4: Simplify right side
    223,431.60x = 45,207,845,662.32
  5. Step 5: Solve for x
    x = 45,207,845,662.32/223,431.60
  6. Step 6: Final answer
    x = 202,334.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.